RootBarrier BV provides a 25-year guarantee based on our practical experience since 1994 and today's knowledge:

• A HDPE- RootBarrier comparison test conducted by the Technische Fachhochschule Berlin. More information
  
  
• An independent test by "Fachhochschule Weihenstephan Forschungsanstalt für Gartenbau" in which RootBarrier and other products were compared with HDPE. More information
  
  
• Good results on a project at Lake Constance. More information
  
  
• Under contract to RootBarrier® BV, BDA Keuringsinstituut BV determined the resistance of a root barrier membrane to penetration by plant roots.
  More information
  
  
• RootBarrier® is the only anti-root membrane manufactured from Typar® Xavan from DuPont™.
  DuPont™ provides a 50-year guarantee on Xavan.

Should you have any doubt regarding the installation or the conditions of the installation of RootBarrier®, always consult a tree expert.

• Please download our warranty confirmation here